Add links support

[LinuxSuRen]

No description provided.

[codecov-commenter]

Codecov Report

Merging #29 (b5a2c29) into master (b5be42e) will increase coverage by 0.30%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #29      +/-   ##
==========================================
+ Coverage   92.03%   92.33%   +0.30%     
==========================================
  Files           2        3       +1     
  Lines         251      261      +10     
==========================================
+ Hits          231      241      +10     
  Misses         14       14              
  Partials        6        6              

Flag	Coverage Δ
unittests	92.33% <100.00%> (+0.30%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
main.go	89.07% <ø> (ø)
function/github.go	100.00% <100.00%> (ø)
function/link.go	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b5be42e...b5a2c29. Read the comment docs.